Statistics on road accidents indicate that most crashes occur at relatively low speeds and that the number of vehicles involved is smaller as the speed increases.
A mathematical model is herewith presented to establish basic factors from which, with a given safety device, the degree of injury to a passenger can be predicted and held down to a predetermined level.
A mathematical model of the crash characteristics of the vehicle and of a schematic 2-dimensional occupant will give figures to be compared to those obtained experimentally in a vehicle crash with 3-point safety belts. A comparison will then be made of the severity of impact at passenger level for different models of cars and for various restraining devices.